Integrated ¹³CO(2 – 1) emission of the four velocity components of the filament candidate G333.297+00.073. The intensity was integrated over the velocity ranges − 55.0 to − 40.5 km s⁻¹ (top left panel), − 74.0 to − 66.0 km s⁻¹ (top right panel), − 96.0 to − 86.0 km s⁻¹ (bottom left panel) and − 82.5 to − 76 km s⁻¹ (bottom right panel). The beamsize is indicated by the circle in the lower left and the contours show the ATLASGAL [0.1, 0.2, 0.5, 1.0, 2.0] Jy beam⁻¹ levels. The letters in the upper right refer to the marked intervals in Fig. 3.